Improvement in compounds for paints



106.v COMPOSlTIONS,

- COAlING 03 PLASTIC UNITED STATES Cross Reference PATENT OFFL in,

FREDERICK A. STALL, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN COMPOUNDS FOR PAINTS.

Specification forming part of Letters Patent No. 14] ,897, dated August 19, 1873; applicaiion filed August 4, 1873.

. and protection of wood, and any substance requiring or being benefited by paint, but also upon the interior of buildings; and it consists of a. composition or compositions formed by mixing the following ingredients in substantially the proportions herein set forth.

To prepare the paint for use upon the outside of buildings, &c., as above mentioned, taketthe following ingredients, and in these proportions, viz: To one barrel of coal-tar add twelve pounds of as haltuni, six pounds of the silicate of soda, two ga ons of dead-oil, four quarts of grou' nd slate or its equivalent, onehalf pound of plulnliago two pounds of um (laminar or is equiva ent, four quar s of lime. lour quarts of coal-ashes, and two galvlons of rosin-oil.

lS mixture coloring pigments may be added, though not essential for most purposes. The color of the said mixture is dark slate. For a. less or greater quantity the same proportions may be used.

I do not confine myself to these exact ingredients or these certain proportions, but have found these proportions form the best com-.

pound. For instance, I- may use the silicate of otassa in the place of the silicate of soda" and am d cl t r ground slate and woodashes Tor ooatas s, with substantially the same results.

The mixture, as above stated, in quantity will consist of about forty gallons. These ingred ents are put into a kettle and slowly heated, the mass being stirred in the meanwhile. The paint is laid on in the ordinary way, and when properly laid on is as nearly fire-proof, absolutely, as any substance can be, and is extremely durable. The paintis entirely inodorous. the tar odor having been removed by certain ingredients in the composition. A good coat of this paint upon any substance suitable for paint will resist any ordinary fire upon it, and it also possesses great durability.

For a fine white or colored fire-proof paint, to be used upon the interior of buildings and other structures or devices, I vary the ingredients of the mixture, as follows, viz. for a small quantity, and the same proportions in larger quantities: To one-half pound of white lead add a tea-spoonful of burned umber, one

gill of linseed-oil, one tea-spoon u o a an, one tea-spoonful of shel dissolve in alcoho one tea-spoon u of the s irits of {Ernent no, and about a wine-glass oi the silicate of soda or silicate of tassa. This m'i'it'uTr'E, proper ytrea ,wit or wit out colorin pigments,will form a fire-proof pain 0 grea durability.

In the above compounds for paint I do not explain the chemical action of each coistituent. To, those skilled in the art the action of those ingredients will be readily understood. Experiment, however, has shown the great value of the same, and as possessing the qualities of fire-proof, durability, and freedon from odors.

1 claim- The improved paints, prepared in the manner and of the materials substantially as described.

Witnesses:

- J. L. Nnw'ron,

TIMOTHY DAVIS.

Examine:

FREDERICK A. sunny 

